content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * ----------------
   * XisSymbolic.java
   * ----------------
   * (C) Copyright 2006-2008, by Anthony Boulestreau and Contributors.
   *
   * Original Author:  Anthony Boulestreau;
   * Contributor(s):   David Gilbert (for Object Refinery Limited);
   *
   * Changes
   * -------
   * 29-Mar-2002 : First version (AB);
   * 07-Oct-2002 : Fixed errors reported by Checkstyle (DG);
   * 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);
   *
   */
  
  package org.jfree.data.xy;
  
  /**
   * Represent a data set where X is a symbolic values. Each symbolic value is
   * linked with an Integer.
   */
  public interface XisSymbolic {
  
      /**
       * Returns the list of symbolic values.
       *
       * @return An array of symbolic values.
       */
      public String[] getXSymbolicValues();
  
      /**
       * Returns the symbolic value of the data set specified by
       * <CODE>series</CODE> and <CODE>item</CODE> parameters.
       *
       * @param series  value of the serie.
       * @param item  value of the item.
       *
       * @return The symbolic value.
       */
      public String getXSymbolicValue(int series, int item);
  
      /**
       * Returns the symbolic value linked with the specified
       * <CODE>Integer</CODE>.
       *
       * @param val  value of the integer linked with the symbolic value.
       *
       * @return The symbolic value.
       */
      public String getXSymbolicValue(Integer val);
  
  }
  